Ryan is a pretty neutral name.
What I'm doing is this:
Anyone who knows me before transition can call me Ryan. My friends, my family, all those peeps. They know this part of me- this transition from Boy to Girl and everything it entails.
Everyone after will know me as Alia. Alia represents femininity, as well as the knife that cuts to kill my former shield that hid me from the world. Alia gives me the power to assert myself as feminine. It's also significantly more clearly gendered, so it will aid in passing. It also starts great conversation with fellow Dune nerds.
When people get close enough, they'll meet my friends and family and say "why do they call you Ryan, Alia?"
At which point its time to make an important decision in regards to the future of my friendship with this person.
Two names serve as a gateway by which I'll keep out those that don't belong.
Legally, my name will be Alia Ryan (insert last name). Which is much more neutral than Ryan William (Insert last name).
OK I'm out! three days of sport climbing in the freezing F***ing cold desert, no shaving and gross man beardness. Woot! Hooray for green toenails and vestiges of my girliness!